Control units
■
BCU control unit types
There are three variants of the BCU control unit used in ACS880 drives: BCU-02, BCU-12
and BCU-22. These have a different number of converter module connections (2, 7 and 12
respectively) but are otherwise identical. The three BCU types are interchangeable as long
as the number of connections is sufficient. For example, the BCU-22 can be used as a direct
replacement for both BCU-02 and BCU-12.
■
Replacing the memory unit
After replacing a control unit, you can keep the existing parameter settings by transferring
the memory unit from the defective control unit to the new control unit.
WARNING!
Do not remove or insert the memory unit when the control unit is powered.
1.
Stop the drive and do the steps in section
Electrical safety precautions (page 16)
before
you start the work.
2.
Make sure that the control unit is not powered.
3.
Remove the fastening screw and pull the memory unit out.
4.
Install a memory unit in reverse order.
■
Replacing the BCU control unit battery
Replace the real-time clock battery if the BATT OK LED is not illuminated when the control
unit is powered.
1.
Stop the drive and do the steps in section
Electrical safety precautions (page 16)
before
you start the work.
2.
Undo the fastening screw and remove the battery.
3.
Replace the battery with a new BR2032 battery.
148 Maintenance
Summary of Contents for ACS880-07LC
Page 1: ... ABB INDUSTRIAL DRIVES ACS880 07LC drives Hardware manual ...
Page 2: ......
Page 4: ......
Page 12: ...16 Resistor braking Further information 12 Table of contents ...
Page 22: ...22 ...
Page 63: ...Mechanical installation 63 10 ...
Page 64: ...64 ...
Page 91: ...a b c 4 a 8 b 16 18 PE PE 10 13 12 Electrical installation 91 11 ...
Page 100: ...With FDPI 02 modules OPEN TERMIN ATED 1 1 2 2 OPEN TERMINATED 3 100 Electrical installation ...
Page 104: ...104 ...
Page 118: ...118 ...
Page 124: ...124 ...
Page 138: ...8 9 138 Maintenance ...
Page 139: ...11 12 12 6 10 Maintenance 139 ...
Page 150: ...150 ...
Page 160: ...160 ...
Page 183: ...Technical data 183 ...
Page 184: ...184 Technical data ...
Page 189: ... Dimension drawing examples ACS880 07LC 0850A 7 Dimensions 189 ...
Page 190: ...ACS880 07LC 1660A 7 6 pulse 190 Dimensions ...
Page 191: ...ACS880 07LC 1660A 7 A004 12 pulse Dimensions 191 ...
Page 192: ...ACS880 07LC 3260A 7 192 Dimensions ...
Page 195: ... 600 mm with main breaker double busbar bottom cable entry Dimensions 195 ...
Page 197: ...Inverter module cubicle with two R8i modules bottom cable exit Dimensions 197 ...
Page 198: ...Inverter module cubicle with three R8i modules bottom cable exit 198 Dimensions ...
Page 199: ...Brake chopper cubicle Dimensions 199 ...
Page 200: ...200 ...
Page 216: ... Declaration of conformity 216 The Safe torque off function ...
Page 217: ...The Safe torque off function 217 ...
Page 218: ...218 ...
Page 220: ...220 ...